Improvement in deep-well tubes



ing greater space for water to enter UNITED STATES PATENT OFFICE.

` HENRY R. KooN, or PI-TrsrtnnmMASSACHUSETTS.

iMPnovi-:M ENT IN Deine-,wirtt rusas.v

Specitlcation formingpart oi Letters Patent No. 49,418,- deted August 15, 12565.

. certain newand useful Improvement in Wells;

endl do hereby declare the following to be a. full, clear', andexact description of my snid inventiomrefereuce being had to the annexed,

drawings, making 'part ot'v this specification,

wherein- .Figure 1 is an elevation of my said improved welltube. Fig. 2 is a. vertical section of the same. Fig. 3 is n detached vertical section of the external case. Fig.- 4 is u detached section ofthe shoe oreap at the lower end; and Fig. 5 is a sectional plain ef the tube and external case.

Similar letters denote'the suine pnrts.

Artesia-n and other wells formed by or linedwith a. metal tube perforated near its lower end ere-weil known.

The nature ot' my said invention consists in an exterior perforated'case colnbined with the interior perforated pipe hy means of @shoepiece that sits upon the lower 'end of the said .perforated pipe and receives the lower end of said easing, the object being to increase the area of the perforated su rfuce against the earth without enlarging the well-tube, thereby gir` the well;

and 1 form Ath e, perforetions in the exterior case smaller than those in the tube, iir order that the perforatious in the tube may not become obstructed.

In the drawings, of ai metallic pipe or sectionsxot' pipe screwed or united together. The lower portion of tlis pipe is perforated through the sidesasuitable distance with holes, as representet A screw is formed et thc lower end of the well'tube, by means ot' which a. shoe-pieceA', is attached, sind to which slice-piece A the casing-B isserewed. .This casing B i-s Vperforated with any desired number f holes, and they should each be smaller than the holes in the tube C, in order that any substance thetmight pass through the perforhtons in Bfshall be ble to pass into the tube U and be drawn up with the water. A

What Iclaini, mul ldesire to secure by Letters Potent, is-

- The perforated casing with the shoe A and perforated well-tube C,

es.V und for the purposes specified.

Inr witness whereof I here hereunto set my' signature.'

HENRY R. KOON.

Witnesses:

LEMUEL W. Smau-ELL, JAS. E. SERRELL, Jr.

G is the well-tube, formed t B, in combination`- 

